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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-7459) CqlRecordWriter doesn't close socket connections
Date Fri, 27 Jun 2014 15:29:24 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-7459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046052#comment-14046052
] 

Jonathan Ellis commented on CASSANDRA-7459:
-------------------------------------------

committed

> CqlRecordWriter doesn't close socket connections
> ------------------------------------------------
>
>                 Key: CASSANDRA-7459
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7459
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Peter Williams
>            Assignee: Peter Williams
>             Fix For: 2.1.0, 2.0.10
>
>         Attachments: cassandra-2.0-7459.txt
>
>
> Using spark with `CqlOutputFormat` results in thousands of open connections to cassandra
(and then crashes unless they get garbage collected fast enough). This is because  each save
to cassandra task creates a `CqlRecordWriter` which opens a bunch of connections but calling
close on those writers does not actually close their socket connections to cassandra.



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